我目前正在尝试使用Visual Studio 2015在Windows 10上使用OpenSSL和HTTP2构建Libcurl 7.54.0，并且我在编译结束时在构建日志中收到这些错误：
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_new referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_del referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_send_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_on_frame_recv_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_on_invalid_frame_recv_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_on_data_chunk_recv_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_before_frame_send_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_on_frame_send_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_on_frame_not_send_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_on_stream_close_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_on_begin_headers_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_on_header_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_callbacks_set_error_callback referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_client_new referenced in function _Curl_http2_init
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_del referenced in function _http2_disconnect
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_send referenced in function _h2_session_send
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_mem_recv referenced in function _Curl_http2_switched
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_resume_data referenced in function _Curl_http2_done_sending
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_want_read referenced in function _should_close_session
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_want_write referenced in function _http2_perform_getsock
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_get_stream_user_data referenced in function _before_frame_send
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_set_stream_user_data referenced in function _Curl_http2_done
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_get_remote_settings referenced in function _on_frame_recv
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_upgrade referenced in function _Curl_http2_switched
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_pack_settings_payload referenced in function _Curl_http2_request_upgrade
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_strerror referenced in function _Curl_http2_switched
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_http2_strerror referenced in function _Curl_http2_strerror
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_priority_spec_init referenced in function _h2_pri_spec
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_submit_request referenced in function _http2_send
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_submit_priority referenced in function _h2_session_send
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_submit_rst_stream referenced in function _Curl_http2_done
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_submit_settings referenced in function _Curl_http2_switched
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_session_set_local_window_size referenced in function _Curl_http2_switched
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_version referenced in function _Curl_http2_ver
1>libcurl.lib(http2.obj) : error LNK2019: unresolved external symbol __imp__nghttp2_is_fatal referenced in function _Curl_http2_switched
1>..\..\..\..\build\Win32\VC14\LIB Release - DLL OpenSSL\curl.exe : fatal error LNK1120: 35 unresolved externals
根据OpenSSL＆amp;在我的电脑上的nghttp2路径，我已经添加了以下内容来卷曲＆amp; libcurl项目： 我已将以下文件夹添加到我的附加库目录（curl project-＆gt; properties-＆gt; configuration properties-＆gt; linker-＆gt; general-＆gt; additionalnal library directories）：
C:\OpenSSL-Win32\lib
C:\nghttp2-1.22.0\lib
并且为curl和libcurl项目添加了另外包括目录（两个项目 - ＆gt; properties-＆gt;配置属性 - > c / c ++ - ＆gt; general-＆gt; additionnal include目录）：
C:\OpenSSL-Win32\include
C:\nghttp2-1.22.0\lib\includes
我还将USE_NGHTTP2的定义添加到项目预处理器定义（两个项目 - >属性 - >配置属性 - > C / C ++ - ＆gt;预处理器 - ＆gt;预处理器定义）中，以便使用nghttp2进行编译。
最后，我正在使用目标平台Win32配置“LIB Release - DLL OpenSSL”构建。
编辑：这个问题似乎与nghttp2有关，因为我在没有NGHTTP2预处理器定义的情况下成功构建。
我肯定错过了一些东西，但目前看不到什么。
感谢您的帮助
卢卡斯